/*
 * Tencent is pleased to support the open source community by making
 * Tencent GT (Version 2.4 and subsequent versions) available.
 *
 * Notwithstanding anything to the contrary herein, any previous version
 * of Tencent GT shall not be subject to the license hereunder.
 * All right, title, and interest, including all intellectual property rights,
 * in and to the previous version of Tencent GT (including any and all copies thereof)
 * shall be owned and retained by Tencent and subject to the license under the
 * Tencent GT End User License Agreement (http://gt.qq.com/wp-content/EULA_EN.html).
 *
 * Copyright (C) 2015 THL A29 Limited, a Tencent company. All rights reserved.
 *
 * Licensed under the MIT License (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of the License at
 *
 * http://opensource.org/licenses/MIT
 *
 * Unless required by applicable law or agreed to in writing, software distributed
 * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */
package com.tencent.wstt.gt.datasource.engine;

public abstract class DataRefreshListener<T> implements IDataRefreshListener<T>{

	/**
	 * 为了支持接口TargetChangeable且老的用户不需要修改代码，
	 * 将DataRefreshListener从interface降级为抽象类，提供onRefresh3个参数默认实现，
	 * 保持原有对DataRefreshListener使用不变
	 */
	@Override
	public void onRefresh(long time, T data, TargetChangeable target){}

	/**
	 * 也提供onRefresh方法2个参数的空实现，这样需要使用3个参数的新用户，就不需要额外写2个参数的实现了
     */
	@Override
	public void onRefresh(long time, T data){}
}
